Special winding machine for coil of differential-step linear underground intelligent oil extraction device

Abstract

The utility model discloses a special winding machine for a coil of a differential step linear underground intelligent oil extraction device, which comprises a mold table, a frame and a PLC (programmable logic controller) control box, a mold body and a wire coil are rotatably mounted on the mold table, a ball screw is mounted on the frame, a support frame is mounted on the ball screw, a belt conveyor is mounted inside the support frame, and a coil is mounted on the PLC control box. A belt conveyor is installed on the supporting frame, a sliding plate is installed on a belt of the belt conveyor, a wire clamping base is installed at the tail end of the sliding plate, a wire pulling base is installed on the sliding plate, a U-shaped bend positioning mold is installed on a platform at the head end of the supporting frame, and a U-shaped bend forming mold is arranged between the U-shaped bend positioning mold and the sliding plate. According to the utility model, the complexity of the step of winding the coil of the cylindrical differential step combined switched reluctance linear motor is effectively reduced, so that the coil is integrally wound, time and labor are saved, the production efficiency of the coil is improved, and the service life of the coil is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield production equipment, in particular to a special winding machine for coils of a differential-step linear downhole intelligent oil production device. Background Technique

[0002] The working principle of the differential-step linear downhole intelligent oil production device: The differential-step linear motor is composed of two parts, a primary (stator) and a secondary (rotor). The primary (stator) consists of a three-phase pancake winding, an iron core, a sliding bearing and a casing. The three-phase winding is embedded in the iron core in the UVW mode, and the tail ends are connected to the neutral point of the N phase (the linear motor is in star connection). The secondary (rotor) is mainly composed of a base shaft, magnetic steel N poles and S poles. The polarities of the two kinds of magnetic steel are opposite, and they are arranged in the order of NSNS NS and embedded on the base shaft. When a three-phase sinusoidal voltage is applied to the primary three-phase winding UVW, a periodic alternating magnetic field is generated in the primary iron core, which interacts with the secondary fixed magnetic field to do work. A traveling magnetic field is generated between the primary and the secondary to achieve relative linear motion. When the timing of the three-phase sinusoidal voltage is changed, the motion direction of the linear motor changes. When the primary is fixed, the secondary is the moving part, and vice versa. When the secondary is fixed, the primary is the moving part. According to the working environment requirements, the linear motor can have a long secondary and a short primary, or a long primary and a short secondary. This differential-step linear downhole intelligent oil production device has a long primary and a short secondary, and the primary is the fixed part and the secondary is the moving part.

[0003] The differential-step linear motor is a dedicated driving motor for downhole intelligent oil production devices. The differential-step linear motor is perfectly combined with a two-way oil pump to form a unique differential-step linear downhole intelligent oil production device. Its unique structure lies in:

[0004] (1) Slender structure. Since the differential-step linear downhole intelligent oil production device needs to be lowered into an oil well with a casing inner diameter of 124.26 - 154 mm, its outer diameter is restricted by the well diameter. When the outer diameter of the differential-step linear motor is determined, its power size will be determined by the length. (2) The primary (stator) is segmented.

[0005] For the convenience of user selection and use, the differential-step linear downhole intelligent oil production device adopts a standard modular design. The primary (stator) is designed with standard segments, and then several standard segments are combined to form the differential-step linear downhole intelligent oil production device. The number of standard segments forms linear motors with different thrusts. The secondary (rotor) determines the length of the rotor according to the number of standard segments of the primary (stator), making the differential-step linear downhole intelligent oil production device modular and serialized. (3) Special oil circuit circulation system;

[0006] The differential-step linear downhole intelligent oil production device works in oil wells for a long time. The deeper the oil well, the higher the temperature downhole. Multiple-point sliding bearings are designed on the primary (stator) to reduce the friction area of the secondary (rotor) and ensure the uniformity of the air gap. A circulating oil circuit is designed on the rotor of the linear motor, which not only ensures the lubrication of the sliding bearing and the rotor but also cools down the linear motor. Due to the limitation of the special structure of the cylindrical differential-step switched reluctance linear motor itself, when producing the cylindrical differential-step switched reluctance linear motor at present, the winding of its coil is very troublesome, which greatly affects the production efficiency of the motor.

[0007] Therefore, we propose a special winding machine for the coil of the differential-step linear downhole intelligent oil production device to solve the above problems. Utility Model Content

[0008] The purpose of the present utility model is to provide a special winding machine for the coil of the differential-step linear downhole intelligent oil production device to solve the problems raised in the above background technology.

[0009] To achieve the above purpose, the present utility model provides the following technical solutions:

[0010] The special winding machine for the coil of the differential-step linear downhole intelligent oil production device includes a mold table, a frame, and a PLC control box. A mold body and a wire reel are rotatably installed on the mold table. A ball screw is installed on the frame, and a support frame is installed on the ball screw. A belt conveyor is installed inside the support frame, and a sliding plate is installed on the belt of the belt conveyor. A wire clamping seat is installed at the tail end of the sliding plate, and a wire pulling seat is installed on the sliding plate. A U-shaped bend positioning mold is installed on the front-end platform of the support frame, and a U-shaped bend forming mold is arranged between the U-shaped bend positioning mold and the sliding plate.

[0011] In a further embodiment, the wire clamping seat includes a fixed plate and a clamping plate that are aligned vertically, the fixed plate is fixed to the sliding plate, and the clamping plate is connected to the fixed plate by bolts.

[0012] In a further embodiment, the U-shaped bend forming mold includes a core plate, a first pressing plate, and a U-shaped frame that are aligned vertically. The core plate is fixed on the platform of the support frame, and the first pressing plate is hoisted directly above the core plate by an electric cylinder 1. The U-shaped frame is fixed on the sliding plate and is parallel to the core plate.

[0013] In a further embodiment, the U-shaped bend positioning mold includes a base plate and a second pressing plate that are aligned vertically, and wire grooves are formed on the opposite surfaces of the base plate and the second pressing plate. The base plate is fixed on the platform of the support frame, a mounting plate is connected to the second pressing plate by a first spring, and an electric cylinder 2 is installed on the mounting plate.

[0014] In a further embodiment, the wire pulling seat includes a chassis and a pressing cylinder that are vertically aligned, and the chassis is fixed on the sliding plate. The pressing cylinder is hoisted above the chassis by an electric cylinder three. The output shaft of the electric cylinder three is connected with a positioning rod, which penetrates through the pressing cylinder and is connected to the top inside the pressing cylinder through a second spring. The bottom end of the positioning rod is rotatably connected with a pressing wheel.

[0015] In a further embodiment, a track parallel to the belt of the belt conveyor is further provided on the support frame, and the sliding plate is slidably connected to the track.

[0016] In a further embodiment, a number of guide rods parallel to the ball screw are also installed between the support frame and the frame, and the support frame is slidably connected to the guide rods.

[0017] In a further embodiment, support seats are symmetrically installed at both ends of the mold table, and fixing seats are provided on the support seats for clamping the end shafts of the mold body. The fixing seats and the support seats are tightly connected through adjusting rods.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] The present utility model effectively reduces the tediousness of the steps when winding the coils of the cylindrical differential combined switched reluctance linear motor, making the operation of coil winding more convenient, time-saving and labor-saving, thus being conducive to improving the production efficiency of the coils. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic three-dimensional structure diagram of the rear end of the present utility model;

[0021] Figure 2 It is a schematic three-dimensional structure diagram of the front end of the present utility model;

[0022] Figure 3 It is a schematic assembly structure diagram of the wire clamping seat, U-shaped bend forming die, U-shaped bend positioning die and wire pulling seat of the present utility model;

[0023] Figure 4 It is a schematic front view sectional structure diagram of the wire pulling seat of the present utility model.

[0024] In the figure: 1. Mold table; 2. Frame; 3. Ball screw; 4. Support frame; 5. Belt conveyor; 6. Wire clamping seat; 61. Fixed plate; 62. Clamping plate; 63. Bolt; 7. Slide plate; 8. U-bend forming mold; 81. Core plate; 82. First pressing plate; 83. U-shaped frame; 84. First electric cylinder; 9. U-bend positioning mold; 91. Substrate; 92. Second pressing plate; 93. First spring; 94. Mounting plate; 95. Second electric cylinder; 10. Wire pulling seat; 101. Chassis; 102. Pressing cylinder; 103. Third electric cylinder; 104. Positioning rod; 105. Second spring; 106. Pressing wheel; 11. PLC control box; 12. Track; 13. Guide rod; 14. Support seat; 15. Fixed seat; 16. Adjusting rod; 17. Mold body; 18. Wire reel. Detailed implementation manner

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0028] Please refer to Figures 1-4, the special winding machine for the coil of the intelligent downhole oil production device with differential step straight line, includes a mold table 1, a frame 2 and a PLC control box 11. Among them, a mold body 17 and a wire reel 18 are rotatably installed on the mold table 1. Support seats 14 are symmetrically installed at both ends of the mold table 1, and a fixed seat 15 is provided on the support seats 14. The support seats 14 and the fixed seats 15 are vertically aligned to clamp the end shaft of the mold body 17, and the support seats 14 and the fixed seats 15 are locked by an adjusting rod 16 connected by a screw thread, so as to facilitate the loading and unloading of the mold body 17 and the wire reel 18. Specifically, a motor for driving the rotation of the mold body 17 is also connected to one of the support seats 14 through a coupling, and the motor is connected to the PLC control box 11. The frame 2 is arranged on the side of the mold table 1, and the extending direction of the frame 2 is perpendicular to the extending direction of the mold table 1. The PLC control box 11 is arranged on the other side of the mold table 1 to facilitate connecting the drives of various devices for semi-automatic operation.

[0029] A ball screw 3 is installed on the frame 2, and a support frame 4 is installed on the ball screw 3. The length direction of the ball screw 3 is parallel to the axial direction of the mold body 17. The screw of the ball screw 3 is rotatably connected to the frame 2 through a bearing seat, and the ball seat of the ball screw 3 is fixed to the support frame 4. Specifically, a motor for driving the rotation of the screw is also equipped at the end of the ball screw 3, and the motor is connected to the PLC control box 11. When the ball screw 3 works, it drives the support frame 4 to move, so as to adjust the winding position of the support frame 4 facing the mold body 17. In order to improve the stability of the movement of the support frame 4, a number of guide rods 13 parallel to the ball screw 3 are also installed between the support frame 4 and the frame 2, and the support frame 4 is slidably connected to the guide rods 13 for stably limiting the support frame 4.

[0030] A belt conveyor 5 is installed inside the support frame 4, and a slide plate 7 is installed on the belt of the belt conveyor 5. The slide plate 7 is fixed to the belt of the belt conveyor 5. A track 12 parallel to the belt of the belt conveyor 5 is also provided on the support frame 4, and the slide plate 7 is slidably connected to the track 12 to maintain the stability of the movement of the slide plate 7.

[0031] A wire clamping seat 6 is installed at the tail end of the slide plate 7. The wire clamping seat 6 includes a fixed plate 61 and a clamping plate 62 that are vertically aligned, and the fixed plate 61 is fixed to the slide plate 7. The clamping plate 62 is connected to the fixed plate 61 through a bolt 63, which is convenient for adjusting the tightness between the clamping plate 62 and the fixed plate 61 when the bolt 63 is turned, so as to facilitate clamping the wire head.

[0032] A wire pulling seat 10 is installed on the skateboard 7. The wire pulling seat 10 includes a chassis 101 and a pressing cylinder 102 that are aligned vertically. The chassis 101 is fixed on the skateboard 7, and the pressing cylinder 102 is hoisted directly above the chassis 101 by an electric cylinder three 103. The electric cylinder three 103 is supported by an L-shaped plate fixed on the skateboard 7. The output shaft of the electric cylinder three 103 is connected with a positioning rod 104. The positioning rod 104 penetrates through the pressing cylinder 102, and the positioning rod 104 is connected with the inner top of the pressing cylinder 102 through a spring two 105. The bottom end of the positioning rod 104 is rotatably connected with a pressing wheel 106. When the electric cylinder three 103 extends, it first drives the pressing cylinder 102 to press on the chassis 101, and then continues to press down. The positioning rod 104 drives the pressing wheel 106 to press on the chassis 101, so that the copper wire is bent at the pressing wheel 106.

[0033] A U-shaped bend positioning die 9 is installed on the first-end platform of the support frame 4. The U-shaped bend positioning die 9 includes a base plate 91 and a second pressing plate 92 that are aligned vertically. Groove lines are provided on the opposite surfaces of the base plate 91 and the second pressing plate 92. The base plate 91 is fixed on the platform of the support frame 4. An installation plate 94 is connected to the second pressing plate 92 through a spring one 93, and an electric cylinder two 95 is installed on the installation plate 94. When the electric cylinder two 95 extends, it drives the second pressing plate 92 to press the copper wire on the base plate 91.

[0034] A U-shaped bend forming die 8 is arranged between the U-shaped bend positioning die 9 and the skateboard 7. The U-shaped bend forming die 8 includes a core plate 81, a first pressing plate 82, and a U-shaped frame 83 that are aligned vertically. The core plate 81 is fixed on the platform of the support frame 4, and the first pressing plate 82 is hoisted directly above the core plate 81 by an electric cylinder one 84. The U-shaped frame 83 is fixed on the skateboard 7 and is parallel to the core plate 81. When the electric cylinder one 84 extends to drive the first pressing plate 82 to press towards the core plate 81, and the skateboard 7 moves to drive the U-shaped frame 83 to approach the core plate 81, it is convenient to bend the copper wire.

[0035] Usage steps:

[0036] Step 1: First, operate on the first coil of the mold body 17. Fix one end of the copper wire to be wound, which is taken from the wire reel 18, in the wire clamping seat 6. Then, place the copper wire in the groove lines of the wire pulling seat 10, the U-shaped bend forming die 8, and the U-shaped bend positioning die 9 in sequence. Start the program to make the wire pulling seat 10, the U-shaped bend forming die 8, and the U-shaped bend positioning die 9 press the copper wire below. Then, start the belt conveyor 5 to pull the copper wire to the set position through the skateboard 7.

[0037] Step 2: Use a special redirecting die (existing tool, not shown in the figure) to redirect the copper wire at the center point where the copper wire intersects the mold. Fix the redirected copper wire tightly to the mold body 17 to ensure the gap between the copper wires.

[0038] Step 3: Start the program to drive the mold body 17 to rotate. The belt conveyor 5 moves back, winds the copper wire back into the mold. Then, control the wire drawing seat 10, the U-bend forming mold 8, and the U-bend positioning mold 9 to release the lower copper wire, take out the copper wire, manually wind the copper wire back into the mold body 17, and then use a special redirecting mold to redirect the copper wire at the center point where the copper wire intersects the mold. Fix the redirected copper wire at one end of the mold body 17, and start the ball screw 3 to move the support frame 4 to the alignment position of the second coil;

[0039] Step 4: Lower the pressing cylinder 102 of the wire drawing seat 10 and the first pressing plate 82 of the U-bend forming mold 8. Place the copper wire in turn between the U-bend positioning mold 9, the U-bend forming mold 8, and the wire drawing seat 10, wind it back at the wire drawing seat 10 into the slots of the U-bend forming mold 8 and the U-bend positioning mold 9, and then lower the second pressing plate 92 of the U-bend positioning mold 9 to press the lower copper wire;

[0040] Step 5: Take the center point of the copper wire in the mold and redirect it. After the redirection is completed, fix the copper wire and the mold body 17 at the second coil, and straighten the mold body 17. Start the belt conveyor 5 and pull the slide plate 7 to the set position;

[0041] Step 6: Release the wire drawing seat 10, start the program to wind the copper wire. When the copper wire bend reaches the core plate 81, manually buckle the copper wire bend around the periphery of the core plate 81, and then start the belt conveyor 5. The slide plate 7 drives the U-shaped frame 83 to press against the core plate 81 to bend the copper wire. Finally, lift the first pressing plate 82 of the U-bend forming mold 8 and the second pressing plate 92 of the U-bend positioning mold 9, wind the copper wire back into the mold body 17, and straighten the mold body 17;

[0042] Step 7: Repeat the above actions until the entire set of coil forming is completed.

[0043] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0044] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A special winding machine for the coil of the differential linear downhole intelligent oil production device, characterized in that: The invention comprises a mold table (1), a frame (2) and a PLC control box (11); a mold body (17) and a wire drum (18) are rotatably mounted on the mold table (1); a ball screw (3) is mounted on the frame (2), and a support frame (4) is mounted on the ball screw (3); a belt conveyor (5) is mounted inside the support frame (4), and a slide plate (7) is mounted on the belt of the belt conveyor (5); a wire clamping seat (6) is mounted at the rear end of the slide plate (7), and a wire pulling seat (10) is mounted on the slide plate (7); a U-shaped bend positioning mold (9) is mounted on the head end platform of the support frame (4), and a U-shaped bend forming mold (8) is provided between the U-shaped bend positioning mold (9) and the slide plate (7).

2. The special winding machine for coils of differential linear downhole intelligent oil production device according to claim 1 is characterized by: The wire clamp seat (6) comprises a fixing plate (61) and a clamping plate (62) which are aligned vertically, and the fixing plate (61) is fixed to the sliding plate (7), and the clamping plate (62) is connected to the fixing plate (61) by means of bolts (63).

3. The special winding machine for the differential linear downhole intelligent oil production device according to claim 1 is characterized by: The U-shaped bending forming die (8) comprises a core plate (81) and a pressure plate (82) aligned vertically, and a U-shaped frame (83); the core plate (81) is fixed on a platform of a support frame (4), and the pressure plate (82) is hoisted directly above the core plate (81) by an electric cylinder (84); and the U-shaped frame (83) is fixed on a slide plate (7) and is parallel to the core plate (81).

4. The special winding machine for coils of differential linear downhole intelligent oil production device according to claim 1 is characterized in that: The U-shaped bending positioning mold (9) comprises a base plate (91) and a second pressing plate (92) aligned vertically, and wire grooves are provided on the opposing surfaces of the base plate (91) and the second pressing plate (92). The base plate (91) is fixed on a platform of a support frame (4), and the second pressing plate (92) is connected to a mounting plate (94) via a first spring (93), and a second electric cylinder (95) is mounted on the mounting plate (94).

5. The special winding machine for coils of differential linear downhole intelligent oil production device according to claim 1 is characterized by: The wire pulling seat (10) includes a chassis (101) and a pressure cylinder (102) aligned up and down, and the chassis (101) is fixed on the slide plate (7), and the pressure cylinder (102) is hoisted above the chassis (101) through electric cylinder three (103), and the output shaft of the electric cylinder three (103) is connected to a positioning rod (104), and the positioning rod (104) passes through the pressure cylinder (102) and is connected to the top of the pressure cylinder (102) through spring two (105), and the bottom end of the positioning rod (104) is rotatably connected to a pressure wheel (106).

6. The special winding machine for the differential linear downhole intelligent oil production device according to claim 1 is characterized by: The support frame (4) is also provided with a track (12) parallel to the belt of the belt conveyor (5), and the slide plate (7) is slidably connected to the track (12).

7. The special winding machine for coils of differential linear downhole intelligent oil production device according to claim 1 is characterized by: A plurality of guide rods (13) parallel to the ball screw (3) are also installed between the support frame (4) and the frame (2), and the support frame (4) and the guide rods (13) are slidably connected.

8. The special winding machine for coils of differential linear downhole intelligent oil production device according to claim 1 is characterized by: Support seats (14) are symmetrically mounted at both ends of the mold table (1), and a fixing seat (15) is provided on the support seat (14) for clamping the end shaft of the mold body (17), and the fixing seat (15) and the support seat (14) are locked and connected via an adjusting rod (16).

Images